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Ceratophyllum demersum (Oxygenating Aquatic)Hornwort
Hardy Perennial
What is Hardy Perennial?
A plant that lives for more than two years.
Capable of withstanding outdoor winter temperatures down to -15C.
A plant that lives for more than two years.
Capable of withstanding outdoor winter temperatures down to -15C.
£16.99
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Height Up to 100cm (39.4in)
Spread Up to 100cm (39.4in)
Hardy Perennial
water garden
Sun or semi shade
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Description
How to Grow
Reviews
This submerged aquatic perennial is an invaluable oxygenator. Ceratophyllum demersum is capable of growing at great depth which makes it particularly useful for oxygenating deep ponds and lakes. The long stems of feathery foliage float freely in the water unless anchored with weights to keep it in the desired location. Commonly known as Hornwort, it has the ability to take up nutrients quickly, making it an excellent competitor with algae. Height and spread: 100cm (39"). Planting depth: Zones 3 & 4 to 2m below water level.
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5 Large Plants (78127)
Hornwort is easy to introduce to ponds. Simply cast bunches of stems into water of depths up to 2m where it will float freely. However if it is preferred in a particular location then adding weights to the bunches will help to anchor it in place. Ceratophyllum grows well in sun or shade.
More Info Hornwort grows vigorously. Remove any excess growth when necessary. No other maintenance is required.
Delivery
Seeds and garden supplies will normally be delivered within the time period stated against each product as detailed above. Plants, bulbs, corms, tubers, shrubs, trees, potatoes, etc. are delivered at the appropriate time for planting or potting on. Delivery times will be stated on the product page above, or in your order acknowledgement page and email.
Orders for packets of seed incur a delivery charge of £2.99.
Orders which include any other products will incur a delivery charge of £6.99.
Where an order includes both packets of seeds and other products, a maximum delivery charge of £7.99 will apply - regardless of the number of items ordered.
Large items may incur a higher delivery charge - this will be displayed in your shopping basket.
Please see our Delivery page for further details, and more information on different charges that may apply to certain destinations.
For more information on how we send your plants please visit our Helpful Guide on plant sizes.
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